The title, Bark! The Herald Angels Sing, is a reference to the Christmas song, Hark! The Herald Angels Sing.
Chloe makes an Up reference when talking to Trummer in a scene.
X KUBE is a parody of the Microsoft Xbox, one of the most best-selling game consoles.
Stan the dog was played by Kuma (only) in this episode. Kuma did one last episode after this one.
This is the last 2012 episode.